The SC4001SE with Magnetic Sensors TSOT-23 RoHS is a device manufactured by Semiment, a leader in magnetic sensors and reed switches. The SC4001SE provides an easy way to detect the presence and absence of a magnetic target. The integrated Hall elements have a clear sensitivity and a fast response time, making it easy to detect and count the off-axis magnetic target. The SC4001SE has low power consumption, making it energy-saving and cost-effective. It also has a low minimum amount of magnetic field required for output, so it can detect weak fields. The SC4001SE is RoHS compliant, meaning it meets the restrictions on the use of hazardous substances in electrical and electronic equipment.